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The clinical impact of percutaneous balloon expandable endovascular stents in the management of early postoperative vascular obstruction

Published online by Cambridge University Press:  19 August 2008

Yoshiho Hatai ,
David G. Nykanen ,
William G. Williams ,
Robert M. Freedom  and
Lee N. Benson
Yoshiho Hatai
Affiliation:
From the Departments of Pediatrics and Surgery, Divisions of Cardiology and Cardiovascular Surgery, The Variety Club Cardiac Catheterization Laboratories, The University of Toronto School of Medicine and The Hospital for Sick Children, Toronto
David G. Nykanen
Affiliation:
From the Departments of Pediatrics and Surgery, Divisions of Cardiology and Cardiovascular Surgery, The Variety Club Cardiac Catheterization Laboratories, The University of Toronto School of Medicine and The Hospital for Sick Children, Toronto
William G. Williams
Affiliation:
From the Departments of Pediatrics and Surgery, Divisions of Cardiology and Cardiovascular Surgery, The Variety Club Cardiac Catheterization Laboratories, The University of Toronto School of Medicine and The Hospital for Sick Children, Toronto
Robert M. Freedom
Affiliation:
From the Departments of Pediatrics and Surgery, Divisions of Cardiology and Cardiovascular Surgery, The Variety Club Cardiac Catheterization Laboratories, The University of Toronto School of Medicine and The Hospital for Sick Children, Toronto
Lee N. Benson*
Affiliation:
From the Departments of Pediatrics and Surgery, Divisions of Cardiology and Cardiovascular Surgery, The Variety Club Cardiac Catheterization Laboratories, The University of Toronto School of Medicine and The Hospital for Sick Children, Toronto
*
Dr. Lee N. Benson, Division of Cardiology, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G 1X8, Canada. Tel. (416) 813-6141; Fax. (416) 813-7547; e-mail: benson@sickkids.on.ca.
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Abstract

To assess the clinical impact of percutaneously implanted balloon expandable endovascular stents on patient management, we reviewed 20 children aged 14 days to 4.8 years (median 1.3 years) with residual vascular obstructions in the immediate postoperative period. Patients included 11 with pulmonary arterial stenosis, five with stenosis of venous pathways after a modified Fontan procedure or bidirectional cavopulmonary anastomosis, and four with a restrictive modified Blalock-Taussig shunt. Placement of the stent was optimal in 18 of 20 patients (24 of 26 Palmaz or Palmaz-Schatz implants). In two patients, rupture of the balloon resulted in malposition of the stent. Reoperation was avoided and symptomatic improvement was noted in 11 of 20 patients (55%), while procedural complications occurred in eight patients. Seven of 10 patients presenting with a low cardiac output syndrome died despite relief of the obstructions. This early experience supports consideration of the application of these devices in the management of significant vascular obstructive lesions in the immediate postoperative period, thus avoiding early reoperation in this profoundly compromised population.

Keywords

Endovascular stentscongenital heart defectspediatric cardiac catheterizationpost-operation
Type
Original Manuscripts
Information
Cardiology in the Young , Volume 6 , Issue 1 , January 1996 , pp. 48 - 53
Copyright
Copyright © Cambridge University Press 1996

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